Pyyan / Compare / gpt-oss-20b vs Qwen3.8-Flash-Next
gpt-oss-20b vs Qwen3.8-Flash-Next
2 of 5Open-Weight Models · verified 2 Sept 2026
gpt-oss-20bOpenAIcurrentQwen3.8-Flash-NextAlibabacurrent
| Specification | gpt-oss-20b | Qwen3.8-Flash-Next |
|---|---|---|
| Summary | Smaller open-weight release. | The most downloaded thing on Hugging Face right now, and a stated Qwen4 preview. |
| Context | — | 262K native, ~1M extended |
| Input ($/Mtok) | — | $0.15 |
| Output ($/Mtok) | — | $0.47 |
| Licence | Open weights | Open weights |
| Max output | — | 32K |
| Parameters | 20B | 125B total, 6B active |
| Released | Aug 2025 | 26 Aug 2026 |
| Model ID | — | Qwen/Qwen3.8-Flash-Next |
| Category | Open-Weight Models | Open-Weight Models |
| Official | OpenAI ↗ | — |
Highlighted rows are where these differ.
Qwen3.8-Flash-Next
- 125B total parameters with only 6B active per token
- Alibaba describes it as a preview of the Qwen4 architecture
- Top of the Hugging Face trending list, with a GGUF build close behind it
Best for open weights at speed.